What size are block drain plugs

[John Larkin]

I know they are bigger than 1/4". I want to go buy a square end socket but not sure of the size. 7mm, 8mm?

Thanks...

 

[Scott231]

Use Vise Grips and be done with it. Then, go to NAPA and purchase petcocks to give you the ability to drain the block.

 

[kwik6]

Yeah, to what Scott231 said. BTW, the petcock size is 1/8" NPT. Carter

 

[John Larkin]

I did that once on the driver side of the block; easy to get to. The passenger side is up and over the starter. I don't have very effeminate hands so there's an access problem there for me.

 

[MSDGN]

If you get a square end socket...it's 7MM

 

[John Larkin]

That's what I was looking for! Thanks!

 

[ChrisCairns]

Originally posted by Scott231
Then, go to NAPA and purchase petcocks to give you the ability to drain the block.

Hehehe....he said petcocks.